Apparatus and method for assembling a battery pack for powering electric traction motors of electric motor-vehicles

A method for assembling a battery pack for use in powering electric traction motors of an electric motor-vehicle, wherein said battery pack has a multi-level configuration formed by different modules arranged side-by-side and overlapping each other, the method comprising:

• providing a plurality of processing or assembly stations arranged in succession and configured to work or assemble the different modules that form the multi-level configuration of the battery pack;
• providing a first and a second processing line oriented parallel to each other, wherein the respective stations of the first processing line face the respective stations of the second processing line;
• providing a first transport device and a second transport device configured to transport respective components that form the multi-level configuration of the battery pack,
• the method further comprising:
• providing a first group of components of the battery pack on the first transport device, said first group of components being arranged to form a base level of said multi-level configuration;
• providing a second group of components of the battery pack on the second transport device, said second group of components being arranged to form successive levels to be overlapped on the base level of said multi-level configuration;
• advancing the first and the second transport devices along the respective first processing line and the second processing line through the respective stations;
• stationing the first and the second transport devices in a respective working area of one of the stations;
• at each station, working simultaneously on said first and said second group of components following advancing of the first and the second transport devices along the respective first processing line and the second processing line and stationing of the first and the second transport devices in a respective station;
• providing a joining station of the base level and the successive levels of the battery pack;
• and
• assembling said second group of components above said first group of components carried by the first transport device, in order to form the multi-level configuration of the battery pack.